﻿using System;
using System.Collections.Generic;
using Goalchee.Common;
using Goalchee.Data;
using Goalchee.DataModel;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;

// The Grouped Items Page item template is documented at http://go.microsoft.com/fwlink/?LinkId=234231

namespace Goalchee
{
    /// <summary>
    /// A page that displays a grouped collection of items.
    /// </summary>
    public sealed partial class GroupedItemsPage : LayoutAwarePage
    {
        private readonly DataServiceCall _dataService = new DataServiceCall ( );

        public GroupedItemsPage ( )
        {
            this.InitializeComponent ( );
        }

        /// <summary>
        /// Populates the page with content passed during navigation.  Any saved state is also
        /// provided when recreating a page from a prior session.
        /// </summary>
        /// <param name="navigationParameter">The parameter value passed to
        /// <see cref="Frame.Navigate(Type, Object)"/> when this page was initially requested.
        /// </param>
        /// <param name="pageState">A dictionary of state preserved by this page during an earlier
        /// session.  This will be null the first time a page is visited.</param>
        protected override void LoadState ( Object navigationParameter, Dictionary<String, Object> pageState )
        {
            // TODO: Create an appropriate data model for your problem domain to replace the sample data
            var sampleDataGroups = _dataService.GetSearchGoalsForTag ( ( String ) navigationParameter );
            //dataService.ReadSearchGoalsFromTags ( sampleDataGroups );
        }

        /// <summary>
        /// Invoked when a group header is clicked.
        /// </summary>
        /// <param name="sender">The Button used as a group header for the selected group.</param>
        /// <param name="e">Event data that describes how the click was initiated.</param>
        void Header_Click ( object sender, RoutedEventArgs e )
        {
            // Determine what group the Button instance represents
            var group = ( sender as FrameworkElement ).DataContext;

            // Navigate to the appropriate destination page, configuring the new page
            // by passing required information as a navigation parameter
            this.Frame.Navigate ( typeof ( GroupDetailPage ), ( ( SampleDataGroup ) group ).UniqueId );
        }

        /// <summary>
        /// Invoked when an item within a group is clicked.
        /// </summary>
        /// <param name="sender">The GridView (or ListView when the application is snapped)
        /// displaying the item clicked.</param>
        /// <param name="e">Event data that describes the item clicked.</param>
        void ItemView_ItemClick ( object sender, ItemClickEventArgs e )
        {
            // Navigate to the appropriate destination page, configuring the new page
            // by passing required information as a navigation parameter
            var itemId = ( ( SampleDataItem ) e.ClickedItem ).UniqueId;
            this.Frame.Navigate ( typeof ( ItemDetailPage ), itemId );
        }
    }
}
